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GB1281596A - Improvements in and relating to servo motors, especially for vehicle braking systems - Google Patents

Improvements in and relating to servo motors, especially for vehicle braking systems

Info

Publication number
GB1281596A
GB1281596A GB4417969A GB4417969A GB1281596A GB 1281596 A GB1281596 A GB 1281596A GB 4417969 A GB4417969 A GB 4417969A GB 4417969 A GB4417969 A GB 4417969A GB 1281596 A GB1281596 A GB 1281596A
Authority
GB
United Kingdom
Prior art keywords
chamber
diaphragm
casing
annular plate
sept
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4417969A
Inventor
Charles Brian Weatherhogg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Girling Ltd
Original Assignee
Girling Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Girling Ltd filed Critical Girling Ltd
Priority to GB4417969A priority Critical patent/GB1281596A/en
Priority to AU19329/70A priority patent/AU1932970A/en
Publication of GB1281596A publication Critical patent/GB1281596A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/563—Vacuum systems indirect, i.e. vacuum booster units with multiple booster units, e.g. tandem booster units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/567—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of the casing or by its strengthening or mounting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

1281596 Fluid pressure brakes GIRLING Ltd 3 Sept 1970 [6 Sept 1969] 44179/69 Heading F2F [Also in Division F1] The peripheral head 38 of a rolling diaphragm 36 is clamped between an outwardly and radially directed shoulder 22 at one end portion of a generally cylindrical vacuum motor casing 10 and the rim 30 of an internal annular plate 26; the rim 30 being interposed between the head 38 and a circular row of inwardly directed dimples 24 formed in the casing adjacent the shoulder 22 thereof. The diaphragm 36 forms with the casing 10 a chamber 32 having a vacuum connection 56 and being in open communication through a spacer sleeve 58 with a chamber 46 hounded by a further rolling diaphragm 50 and an annular plate 40. The other side of diaphragm 50 forms with the casing end a chamber 48 connected by a duct 72 with a further chamber 34 bounded by diaphragm 36 and the annular plate 26. Chamber 48 and hence 34 may be connected to vacuum in chamber 46 or to atmospheric pressure according to the seating at 92, 90 of a known valve closure member 88 moved axially by a manual push rod 84. In operation and on pushing rod 84, diaphragms 36, 50 move to the left against a spring 68 and thus displace an output rod 82 which operates a brake master cylinder.
GB4417969A 1969-09-06 1969-09-06 Improvements in and relating to servo motors, especially for vehicle braking systems Expired GB1281596A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4417969A GB1281596A (en) 1969-09-06 1969-09-06 Improvements in and relating to servo motors, especially for vehicle braking systems
AU19329/70A AU1932970A (en) 1969-09-06 1970-08-28 Improvements in and relating to servo motors, especially for vehicle braking systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4417969A GB1281596A (en) 1969-09-06 1969-09-06 Improvements in and relating to servo motors, especially for vehicle braking systems

Publications (1)

Publication Number Publication Date
GB1281596A true GB1281596A (en) 1972-07-12

Family

ID=10432139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4417969A Expired GB1281596A (en) 1969-09-06 1969-09-06 Improvements in and relating to servo motors, especially for vehicle braking systems

Country Status (2)

Country Link
AU (1) AU1932970A (en)
GB (1) GB1281596A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450729A1 (en) * 1979-03-05 1980-10-03 Teves Gmbh Alfred TWO-CIRCUIT PRESSURE AMPLIFIER
DE3111188A1 (en) * 1981-03-21 1982-09-30 Alfred Teves Gmbh, 6000 Frankfurt MECHANICALLY CONTROLLABLE POWER AMPLIFIER, ESPECIALLY FOR BRAKE SYSTEMS OF MOTOR VEHICLES
US4637505A (en) * 1981-09-15 1987-01-20 Luk Lamellen Und Kupplungsbau Gmbh Fluid-operated clutch disengaging apparatus
FR2623763A1 (en) * 1987-12-01 1989-06-02 Bendix France BRAKE ASSIST MOTOR

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU449949B2 (en) * 1970-04-29 1974-06-10 Girling Limited Fluid pressure servomotor body

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450729A1 (en) * 1979-03-05 1980-10-03 Teves Gmbh Alfred TWO-CIRCUIT PRESSURE AMPLIFIER
DE3111188A1 (en) * 1981-03-21 1982-09-30 Alfred Teves Gmbh, 6000 Frankfurt MECHANICALLY CONTROLLABLE POWER AMPLIFIER, ESPECIALLY FOR BRAKE SYSTEMS OF MOTOR VEHICLES
US4637505A (en) * 1981-09-15 1987-01-20 Luk Lamellen Und Kupplungsbau Gmbh Fluid-operated clutch disengaging apparatus
FR2623763A1 (en) * 1987-12-01 1989-06-02 Bendix France BRAKE ASSIST MOTOR
EP0319359A1 (en) * 1987-12-01 1989-06-07 BENDIX EUROPE Services Techniques S.A. Brake booster servo motor
US5052274A (en) * 1987-12-01 1991-10-01 Bendix France Tandem brake booster with return spring arrangement for rear piston chamber

Also Published As

Publication number Publication date
AU1932970A (en) 1972-03-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee